Draft, rain, and dust excluder for doors.



No. 761,704. Y lPATRNTRD JUNE 7, 1904.

. A. PARKRR.

DRATT, RAIN, AN-D DUST EXGLUDRR TOR DOORS.

. APPLIAO ATIoN FILED SEPT. 15.1903. 1ro MODEL v VV/ 77x75 SS E I' /A/ VEN TOR mmj -1' c UNITED STATES Patented June 7, 1904.

PATENT OFFICE.

l ALEXANDER PARKER, OF ,DANNEVIRKE I-IAWKES BAY, NEW ZEALAND, ASSIGNOR OF ONE-HALF TO FREEMAN LAWLOR JACKSON AND ED- VARD ELEN PRIOR, OF DANNEVIRKE, HAVVKES BAY, NEW ZEALAND DRAFT, RAINJ AND DUST EXCLUDER FOR DOORS.

SPECIFICATION forming part of Letters Patent No. 761,704, dated June 7, 1904.

Application filed September l5, 1903. Serial No. 173,312. (No model.)

T0 (1J/Z 7,071,077?, 2113 71u17/ concern.'

Beit known that I, ALEXANDER PARKER, a subject of the King of Great Britain, residing at Dannevirke, Hawkes Bay, in the Colony of New Zealand, have invented a new and useful Improved Draft, Rain, and Dust Excluder for Doors; and I do hereby declare the following to be a full, clear, andexact description of the same.

This invention relates to improved means whereby the crack or opening at the bottom of a door, when the doorv is closed, may be covered, so as to prevent the entrance of dust, draft, or rain bencath the door. The means devised consists of a roller that is freely mounted in a groove formed in the bottom l edge of the door and which extends throughout the whole width thereof. This roller is supported by suitable bearings at each end of the groove and is provided with a flat plate attached to its periphery at atangent or radially throughout its whole length. The edge of this plate is preferably formed of rubber 0r other resilient material. When the roller is partially revolved in its bearings, this plate will be turned down, so that its edge shall engage with the floor. To operate the roller to drop its plate, different devices may be employed.

In the drawings three distinct arrangements are shown; but I desire it to be understood that I do not confine myself exclusively to the use of all or any one of such, my invention consisting principally in the use of aroller and tangential or radial plate.

Reference now being made to the accompanying drawings, Figure l isa front elevation of a door, the bottom portion being in section, so as to show the roller-plate mounted therein. Fig. 2 is a @ross-sectional elevation of the Vsame looking from theright of Fig. 1 and illustrating one device by means of which the' roller may be revolved.

a is the door, the bottom `edge of which is provided witha groove or tunnel running throughout its whole width. The ends of this groove are closed by the metal plates c, secured against the edges of the door, and these plates form bearings to support the ends of the p to assume the position shown in Fig. 2 when the door is open, and when the roller is turned on the closing of the door l(by means hereinafter described) it will assume the position shown by dotted lines in Fig. 2, its extreme edge thus forming Contact with the iioor beneath the door and closing up the crack or opening.

The outer end of the roller d has secured upon it a small pinion f. In the device shown in Fig. 2 the teeth of this pinion as the door is closed are adapted to engage with the teeth of ametal block g, secured to the Hoor in the jamb edge of the doorway. By this engagement the pinion will be given a partial revolution, so as to turn the roller and cause the plate e to tip down and engage with the floor.

To raise 'the plate e from the ioor as the door opens and to keep it normally raised, a helical spring la in slight tension has its bottom end secured to the periphery of the roller CZ, while its top end is secured to a recess formed in the top of the groove'b. As the roller is turned to drop the plate this spring will be drawn out into greater tension, so that immediately the hold of the block g or bar 7L on the pinion f is released by partially opening the door this spring will revolve the roller back again, and thus draw up the plate e in to its normal position clear of the floor.

What I claim as my invention, and desire to secure by Letters Patent, is

In means for excluding draft, rain and dust from passing beneath doors, a groove or tunnel extending along the bottom edge of the door, bearings secured to the door and closing the ends of the groove, a roller extending along the groove and carried in said bearings, a plate tangentially or radially secured to the roller throughout its length and teeth secured upon the roller at one end, in combination With a toothed plate secured upon the floor In testimony whereof I have signed this and having teeth thereon with Which the pln- Specification 1n the presence of two Subscrib- 1on 1s adapted to gear When the door is closed ing Witnesses.

so as to partially rotate the roller and a helical ALEXANDER PARKER. 5 Spring secured at one of its ends to the roller W'itnesses:

and at the other end to the top of the groove F. W. HAWKINS,

or tunnel as specified. GORDON LLOYD. 

